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/*!
  \class SoViewVolumeElement Inventor/elements/SoViewVolumeElement.h
  \brief The SoViewVolumeElement class is yet to be documented.

  \ingroup elements

  FIXME: write doc.
*/

#include <Inventor/elements/SoViewVolumeElement.h>

#include "SbBasicP.h"

#include <cassert>

/*!
  \fn SoViewVolumeElement::viewVolume

  FIXME: write doc.
*/

SO_ELEMENT_SOURCE(SoViewVolumeElement);

/*!
  \copydetails SoElement::initClass(void)
*/

void
SoViewVolumeElement::initClass(void)
{
  SO_ELEMENT_INIT_CLASS(SoViewVolumeElement, inherited);
}

/*!
  Destructor.
*/

SoViewVolumeElement::~SoViewVolumeElement(void)
{
}

//! FIXME: write doc.

void
SoViewVolumeElement::set(SoState * const state,
                         SoNode * const node,
                         const SbViewVolume & viewVolume)
{
  SoViewVolumeElement * element = coin_safe_cast<SoViewVolumeElement *>
    (
     SoReplacedElement::getElement(state, classStackIndex, node)
     );
  if (element) {
    element->viewVolume = viewVolume;
  }
}

//! FIXME: write doc.

const SbViewVolume &
SoViewVolumeElement::get(SoState * const state)
{
  const SoViewVolumeElement * element = coin_assert_cast<const SoViewVolumeElement *>
    (
     SoElement::getConstElement(state, classStackIndex)
     );
  return element->viewVolume;
}

/*!
  Initializes the element to its default value. The default
  value is rectangular box with 
  (left: -1.0, right: 1.0, bottom: -1.0, top: 1.0, near: -1.0, far: 1.0).
*/

void
SoViewVolumeElement::init(SoState * state)
{
  inherited::init(state);
  this->viewVolume.ortho(-1.0f, 1.0f, -1.0f, 1.0f, -1.0f, 1.0f);
}
